Hose-coupling.



No. 645,5s7 Puente@ Mar. I3, lena. P. H. REAHnoN.

HOSE COUPLING.

(Application filed Sept, 20, 1899.)

(No Model.)

Wmassasi NKWQQ OY.:

UNrrEn STATES PATENT Unsinn.v

PATRICK H. RARDO/N', OF SAN FRANCLSC, CALlFORNlA.

HosE-coU-PLiNc.

srn'ornoa'ron fomingpart of Letters raient No. 6515,53?, dated Maren k13, 190e.

' .Application nea sannita 20,1899; serian). 731,073'. on model.)

.To ct/Z :chant it may concern.-

Francisco,- inthe county of San Francisco andv State of California, have invented certain new and useful Improvements in Hose-Couplto be afull, clear, and enact descriptiouof the lings; and I do hereby declare the following *Thisinvention pertains to couplings or connections andrelates to the class of devices 'ffor connecting flexible pipes or hose, particu- `face of the coupling, rendering it short-lived and imperfect tol perfor-in its functions, be-

larly those subjected to great pressure and which are in'lconsequence 'verylstrongand `unyielding--as, for example, those used in steam connections and those used in operating roplodrills.

/Heretofor'e much difficulty has been expeiencedfin this` formof devices in securing' strong unyield'ing hose upon` the metallic coupling. difficulty of forcing the,l coupling-,shank into .the hose,which has heretofore been usually accomplishedby hammering anddirect pressure upon the. coupling.. The effect of vthis has been 'to lbruilseand de face the joint-sursides mutilatin g the interior of the hose. Anf4 otherdifticult-y with such couplings is the comparative ease with which the hose is pulled off the coupling-shank. This is enhancedby the imperfection of the means at present employed for securing the hose upon lthe shank` rEhe objects of the present invention may be stated to be, in general terms, to overcome the difficultiesreferred `to and, more specific-- ally stated, to provide a simple and inexpensive coupling which may bev readily secu-red `on and removed from hose of strong and unyielding character without vinjury to either .coupling orliose and to provide a device of this character thatthe hose will part more readil v than pull off the coiipliug.` A' x 1 byineans of the devices illustrated in the accompanying drawings, in which- Figure lis a 'View of the device, partlyv in section, to more clearly illustrateit. Fig. 2

is a view of the cla mp, partl,v in section, to is a plan more clearly illustrate it.` Fig. o

b larger than This 1s largely owing to the great.

view of the coupling-ring. Fig. d isa View of the key. i

Referring to the accompanying drawings, A is ashank of suitable length slightly larger than the interior diameter of the hose to be secured thereon. .A portion of its length, commencing with its outer-end, is provided with a round or non-angular thread CL, raised aboveits surface. This thread extends'over onlya portion of the shank A, the remainder c of the shank being plain. The shank at its outer end for the distanceoccupied by two or' three threads is tapered, being smaller at the end, the threads' vconforming tothe taper, as shown in Fig. l. It is also provided with a raised hexagonal or otherwise-roughened flange c2 for the reception of a turning-Wrench. Beyond the khexag'on t2 the shank increases in diameter' slightly the 'hexagonal partand having an outWardly-projecting bearing-liange a3, form ing one portion of the coupling proper, thel outer surface ofv` this flange a being suitably formedfor the reception of packing B. The

interior ofthe shank A, at the'couplingend, ,ispreferably bored of larger diameter than the normal size for a short distance, and ben yond this counter-bore d* it is provided With an angular key-socket c?, shown in Fig. 3 as a square socket located,.preferablyWithin the hexagonal portion.

A clamp C, Figs'l and 2, of peculiar construction is employed, which consists of tivo similar halves connected by bolts. Each half of this Vclamp consists of an approximatelyseinicircular band provided with an outwardly-projecting flange c, located some dis .v tance back of the clamp ends'.

Strengthening-ribs c, Figs. l and 2, are provided on each side of the flange at the inner angle of the junction of the frange lWith the clamp, as shown. in -Fig. n. A shonider c2 is provided at one end of eachh-a'lf-clamp, Fig. 2, to prevent the i fur-ning of the bolt C. l An inwardly projecting rib C2 is provided on the interior surface of the clampJ adapted to em-beditself in the outersurfaee of the hose. This clamp is located on the plain portion of shank A IOC beyond the rounded tlneads and between them and the hexagonal portion..

The other port-ion l) of the .coupling consists of a threaded portion d, somewhatlargcr provided with a 'projecting shank. having suitable exterior threads.

A coupling-ring E, Figs. l and 3, is provided, having an inwardly-projecting flange e, adapted to engage with fiange ai and having internal threads to `fit the threaded por- 'tion d of the shank D. The ring E is also provided with projecting bosses e', adapted to be engaged by a suitable Spanner-wrench.

' A suitable key F, fitting the internal keysocket, is provided, as shown 4in Fig. 4, for screwing the shank into the hose.

To operate the. device,- the shank A is screwed into the hose by means 'of the key F, and the internal socket a5 or the hexagonal flange a2 and an ordinary wrench may be used. The clamp being previously slipped over the hose loosely is placed so as to embrace the hose above the non-angular threads and between them andthe hexagonal flange and is then tightly clamped by means of the bolts C', the non-angular threads'forlning a collar to prevent the withdrawal of the hose. The inwardly-projecting rib C2 of the clamp being 'pressed into the hose also insures against the withdrawal of thehose from the shank. The shoulders 'c2 by preventing the turning of the bolts facilitate the rapid adjustment of the clamp, and the angle-ribs c insure the non-breaking of the clamp-flanges when subjected to the necessary hard duty required of them.

Of course, when circumstances require it,

x the male portion D of the coupling may be supplied with a similar shank to A, with its clamp,nonangular thread, and plain portion, in which form the device will couple lengths of hose together. drawings the device is adaptedto be used in connecting a hose to a rock-drill orother similar requirement. i

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A coupling having ahank ladapted to enter a hose with apportion'gof its length pro- A vided With non-angular threads, said 4shank provided with means comprising a circumferentially-broken or faceted surface or flange adapted to engage with and -be turned by an l independent wrench.

2. A coupling having a'shankV with aportion of its length provided with non-angular threads, said shank provided with means comprising a circumferentially broken or faceted surface or flange adapted to engage with and be turned by an independent wrench and having a portion of its length between, said means and the non-angular threads plain, whereby said threads act as a vprojecting col- Vlar to' prevent the withdrawalof an exterior hose, a twopart clar'np with lsuitable com- In the form shown in the pression devices and an internal rib adapted to be compressed into the exterior surface of the hose.

3. Ahose-con-nection devi'cc comprising a suitable coupling'having a shank adapted to enter a hose, and a two-part clamp adapted to Aembrace said hose having projecting flanges c, with ribs c' and an inwardly-projecting rib C2, raised above the normal interior surface of the clamp.

Ll. A hose-connection device. comprising a suitable coupling having a shank adapted to enter a hose and a two-part clamp adapted to embrace said hose having projecting flanges e, with ribs c' and an inwardly-projecting rib Iiange a3, a shank D having an exterior thread` d, a coupling-ring provided with an interior thread to lit the thread d and an inwardlyprojecting ange to engage with the shoulder a3 and having exterior bosses adapted to engage with and be operated by a Spanner- Wrench.

6. A coupling having a tapering shank adapted to entera hose having a limited porvIO tion of that part which enters the hose provided with non-angular threads, said shank provided with means comprising a circumferen tially broken or faceted surfaceor flange adapted to engage with and belturned by an independent wrench and a suitable clamping device on the`hose circumscribing the plain portion of the shank. l

7. A hose-connection device comprising a suitable coupling having a tapering shank adapted to enter a hose and a two-part clamp adapted to embrace said hose having projecting flanges cwith ribs c and an inwardlyprojecting rib C2 raised above the normal interior surface of the clamp.

8. A coupling having a tapering shank los adapted to enter a hose and having means adapted to be turned by an independent wrench comprising broken or faceted surface or ilange' and provided with non-angular threads extending a portion of its length, the vremainder of said shank being plain and a compression device adapted to compress the hose upon the plain portion of the shank, whereby the threads a `circumferentiallyl form a shoulder to resist the withdrawal of theshank.

v PATRICK I-IQREARDON.

\Vi tnesses :V

WM. A. IIEWITT, A. W. STAUFFER. l 

